When comparing Signal vs Contus Fly, the Slant community recommends Signal for most people. In the question“What is the best team chat software?” Signal is ranked 11th while Contus Fly is ranked 28th. The most important reason people chose Signal is:
Signal uses an advanced end to end encryption protocol that provides privacy for every message every time.
Ranked in these QuestionsQuestion Ranking
Pro Provides security and privacy
Pro Free and open source
Signal is free and open source software, enabling anyone to verify its security by auditing the code. It's the only private messenger that uses open source, peer-reviewed cryptographic protocols to keep your messages safe.
Pro Supports encrypted group chats
Pro SMS/MMS support
Signal can be your default SMS/MMS text messenger. Encryption is not possible when sending SMS to your contacts, however.
Pro Supports sharing of various different media types
Signal supports: emoji, pictures, videos, audio, contacts, any location and GIF.
Pro Recommended by Edward Snowden
Edward Snowden uses this messenger and recommends it to everyone who is concerned about his privacy.
Pro You can easily view all media exchanged
You can easily view all media shared in the chat without scrolling back to when it was shared.
Pro Message mirroring on Signal Desktop
Signal Desktop is a Chrome extension that allows you to mirror messages from your phone, including replying.
Pro Note to Self feature
Allows you to "send: messages to yourself and sync to desktop so you can use Signal as a kind of encrypted Pushbullet alternative
Contus Fly has quick scalability applications from few users to lakhs of users. It performs simultaneously to communicate with the user with online presence.
Pro On Cloud
Host data on a cloud server or on your own premises servers to scale up your instant messaging mobile app's accessibility and scalability.
Pro High Profile Technology Stack
Build your chat app with solution powered by Ejabbered, Erlang, Amazon Web Services, MySQL, and much more under the hood.
Hyper-accommodative for quick customizations, scalability, technology updates and integrations.
Con Needs access to your phone number and contacts to work
Con Single device
Signal can only be registered to one mobile device at a time. But you can link Signal to Signal Desktop.
Con Servers hosted in the US
A security risk due to National Security letters, which require giving up data to the US state, and making it illegal to disclose that.
Con Unreliable notifications
Sometimes messages won't be received if the Signal app has been closed for a long time or hasn't been opened after booting the device.
Con If SMS/MMS imported, other apps can't read SMS
For those using Join, Pushbullet, or similar apps to send and receive SMS/MMS from web or desktop, putting your SMS in Signal somehow breaks this functionally. The dev is aware but plans to remedy the situation have not been named a priority
Con Uses message mirroring
Con Group video conferencing
Communicating with a group using video calls on the chat app is an extra feature. You need an upgrade in group video conferencing.